Sheet metal guide and support for vise jaws



Sept. 23, 1952 BRANDSTAD SHEET METAL GUIDE AND SUPPORT FOR VISE JAWSFiled July 2'7, 1948 Wren/fa? 44/44 72-7 ZIP/4 40:2790 w W PatentedSept. 23, 1952 SHEET METAL GUIDE AND SUPPORT FOR vIsEJAWs- MalteBrandstad, Torshalla, Sweden I I Application July 27, 1948, Serial No.40,969

In Sweden March 10, 1947 2 Claims.

My invention relates to vises of the type wherein the jaws consist ofsheet metal.

It is an object of my invention to provide a vise of this kind which maybe produced at a low cost and which is very strong and durable even ifmade of comparatively thin sheet metal.

Another object of my invention is to provide a vise in which all partsof the mechanism connecting the movable jaw with the stationary jaw areencased or concealed, and which has a neat appearance with smooth outersurfaces so that filing, etc. may easily be removed during cleaning.

Other objects of the invention will appear from the following detaileddescription of a preferred embodiment thereof, reference being had tothe accompanying drawing wherein:

Fig. l is a side view, partly in longitudinal section of the vise;

Fig. 2 is a plan view of the vise,

Fig. 3 is a cross sectional View on lines III--III of Fig. 1, and

Fig. 4 is a cross-sectional view taken on line IV-IV of Fig. 1.

In the drawing I represents the stationary jaw of the vise and 2 itsmovable jaw. Each jaw is made from sheet metal, preferably sheet steel,and consists of two similar halves Ia, lb and 2a, 2b, respectively, eachhalf being drawn or pressed in the form of a trough, and the two halvesforming each jaw being connected by welding at their abutting edgeswhich are situated in the vertical plane of symmetry of the vise. Afastening plate 3 is connected to the underside of the stationary jaw Ias by welding and is provided with apertures permitting the vise to berigidly secured to a bench by bolts in the ordinary manner.

The movable jaw 2 is slidably mounted in the stationary jaw I. As shown,the stationary jaw l is formed with a lower channel-shaped guideway 4 inwhich a nut 5 is fixedly mounted at the outer end. The movable jaw 2 isformed with a lower slide portion [4 adapted to be received in theguideway 4 and movable therein in longitudinal direction. In the movablejaw 2 a clampin screw 6 is revolubly mounted. This screw extends throughthe slide portion l4 and engages the nut 5, as shown. The clamping screw6 is provided with a head I at its outer end and with an operating leverB slidingly mounted in a bore in the head. A hardened wear plate 9 issecured to the movable jaw 2 under the head I of the clamping screw,said plate being formed with a bushing extending through the wall of thejaw and forming a bearing for the clamping screw 6 which is held againstaxial displacement by an open washer Ii] secured to the inner side ofthe movable jaw 2 and engagin an annular groove in the screw.

The nut 5 has machined side surfaces II, and the lower edges of theslide portion of the movable jaw 2 which are spaced from eachother areturned inwardly at right angles, as shown at I2, so as to engage theside surfaces H of the nut 5 which thus serves as a lateral guide forthe movable jaw 2. The inturned lower edges of the movable jaw increasethe strength and stiffness of the same and provide larger base surfacesfor taking up vertical pressure acting on the jaw. These base surfacesare adapted to slide upon wearstrips l3 preferably made from hardenedsteel and secured to the bottom of the guideway 4 by means of screws [9.

As shown in Fig. 3, the upper part l5 of the slide member I 4 has thecross section of an inverted V and engages in a similarly shaped upperportion [6 of the guideway 4. This arrangement permits any clearancewhich may exist in lateral direction between the slide member I 4 andthe guideway A to be eliminated simply by loosening the screws of thewear strips l3 and inserting additional strips of suitable thicknessbetween the first-mentioned strips and the bottom of the guideway 4.

The jaws are provided with gripping members I! and I8, each consistingof a hardened steel piece which is secured to the respective jaw by arcwelding and which has a thickness sufiicient to prevent the same frombeing de-hardened during the Welding operation.

What I claim is:

1. In a vise, a stationary jaw provided with a fastening plate andcomposed of two image-like channel-shaped halves of drawn sheet metalwelded together at their abutting edges, the lower portion of said jawforming a straight channel-shaped guideway having a flat bottom wall, anut secured to said bottom wall and having side surfaces spaced frominterior side surfaces of said guideway, a movable jaw also composed oftwo image-like channel-shaped halves of drawn sheet metal weldedtogether at their abutting edges and formed with a lower straight slideportion which is slidingly mounted in the guideway of the stationaryjaw, the upper portions of the slide and the guideway each having aninverted V-shaped cross section and the slide portion having spacedlower edges which are turned inwardly at right angles so as to engagethe side surfaces of the nut and to provide there- 3 with a guide forthe movable jaw, a clamping screw revolubly mounted in the movable jaw,said screw extending through said slide portion and engaging said nut,and wear strips mounted on said bottom wall and beneath the inturned 5guideway by screws so as 'to permit insertion of additional strips underthe wear strips for ad-- .justment purposes aif'ter loosening thescrews.

MALTE BRANDSTAD.

4 REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 82,095 Dibble Sept. 15, 1868397,794 Gates Feb. 12, 1889 1,345,403 Retsiger July 6, 1920 1Q 1,538,500Aubard May 19, 1925 2,467,658 Carnelli Apr. 19, 1949 FOREIGN PATENTSNumber Country Date 414,579 Germany June 9, 1925 509,674 Great BritainJuly 19, 1939

